倾转四旋翼UAV过渡状态下旋翼/机身气动干扰数值分析  

Numerical Analysis of Aerodynamic Interference of Rotor/Fuselage in Transition State of Tilting Four-Rotor UAV

作　　者：杜思亮 王策[2] 孙宏佳 唐正飞 招启军[2] DU Sihang;WANG Ce;SUN Hongjia;TANG Zhengfei;ZHAO Qijun(Faculty of Mechanical&Material Engineering,Huaiyin Institute of Technology,Huaian,223003,China;National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics,Nanjing University of Aeronautics&Astronautics,Nanjing,210016,China)

机构地区：[1]淮阴工学院机械与材料工程学院,淮安223003 [2]南京航空航天大学直升机旋翼动力学国家级重点实验室,南京210016

出　　处：《南京航空航天大学学报》2018年第2期179-185,共7页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：通过数值模拟的方法对十字构型倾转四旋翼UAV在倾转过渡状态下前旋翼/机身/后旋翼间的气动干扰进行了计算与分析。分别建立了孤立前旋翼、前后旋翼、前旋翼-机身、前后旋翼-机身组合时的计算模型。在不同旋翼倾转角下,研究了以上组合模型对前旋翼、后旋翼以及机身的气动力和力矩的影响并分析了相互间的气动干扰情况,得出了前旋翼是整机气动干扰影响的主导因素,揭示了旋翼/机身间气动干扰形成的原因,为该构型旋翼布置与控制系统的设计提供参考。Numerical simulation is carried out to calculate and analyze the aerodynamic interaction be-tween the front rotor/fuselage/rear rotor during the tilting and transition state of the cross shaped four-rotor UAV.The calculation models of isolated front rotor,front/rear rotors,front rotor/fuse-lage,and front/rear rotors fuselage combination are established.Numerical calculation and analysis of aerodynamic force and aerodynamic torque of the front rotor/fuselage/rear rotor at the different an-gles of rotor tilting are proposed.It is concluded that the front rotoris the leading factor in the aerody-namic interferenceof the whole UAV in the front rotor/fuselage and front/rear rotor fuselage combina-tion.It provides the theoretical guidance for the design and optimization of the configuration of this kind UAV.

关 键 词：倾转四旋翼 气动干扰 CFD 无人机 旋翼 

分 类 号：V211.52[航空宇航科学与技术—航空宇航推进理论与工程]